Winding tower



FIG. 1 is a perspective view of an ornamental design for a winding tower according to the invention;

FIG. 2 is a side view of an ornamental design for a winding tower according to the invention; and,

FIG. 3 is a top view of an ornamental design for a winding tower according to the invention. 

The ornamental design for a winding tower, as shown and described. 